Use submodules to deal with XML dependencies

Removed the references to raw.github.com.
Added a git submodule pointing to ScudLee's anime-lists repo.
Fixed bug in cleanse_title(self, title), where string.translate(None, FILTER_CHARS) was throwing a TypeError due to the None parameter
Merge pull request #1 from toroidal-code/master

Use submodules to deal with XML dependencies